What is an actuated damper?
Damper actuators are powered devices that are used to operate a damper and adjust the flow of air and smoke. There are two basic types: electric and pneumatic.
What is a pneumatic damper?
Pneumatic Dampers (or shocks) provide speed and motion control using gas damping in extension, compression, or both directions. Pneumatic dampers are often used in low force applications where low friction and temperature stability (relatively insensitive to temperature changes) are critical.
How does a pneumatic damper work?
Pneumatic actuators rely on some form of pressurized gas — most often compressed air — entering a chamber, where the gas builds up pressure. When it has built up enough pressure in contrast to the outside atmospheric pressure, it results in the controlled kinetic movement of a device such as a piston or gear.
How does an air actuated valve work?
A pneumatic actuator is one component of a control valve package. When the actuator receives a pneumatic signal from the pilot, the pressure pushes up on the actuator diaphragm. This opens the valve and allows process fluid or gas through the valve orifice (in a pressure-open/fail-close set up).
How long does a damper motor last?
With proper maintenance and care, your HVAC damper motor can last you as long as your system lasts. That means damper motors can last 15 years, but like any electrical device, they’re prone to malfunction if neglected.
What is hydraulic damper?
Hydraulic dampers are damping elements that convert the kinetic energy of moving parts into thermal energy. Hydraulic dampers consist of a pressure pipe, a piston rod with a special piston system and the damping medium of oil, which is why they are also called hydraulic dampers.
What is pneumatic control?
A pneumatic controller is a mechanical device designed to measure temperature or pressure and transmit a corrective air signal to the final control element. Pneumatic controllers are used in automatic control systems for flow rate, pressure, temperature, level, and other parameters of industrial processes.
What is the function of the flow control valve?
The purpose of a flow control valve is to regulate the flow rate in a specific portion of a hydraulic circuit. In hydraulic systems, they’re used to control the flow rate to motors and cylinders, thereby regulating the speed of those components. The energy transfer must be equal to the total work done.
How are damper actuators used in air conditioners?
In systems that are controlled by air pressure, pneumatic damper actuators are used. These typically have a spring that moves the actuator, which is activated by changes in air pressure within the control system. Electric actuators, in contrast, are controlled by motors.
How does Openair fire and smoke damper actuator work?
OpenAir fire and smoke damper actuators are uniquely designed to reduce risk and deliver better life safety with the only integrated actuator and electronic fusible link for improved safety. See how easy it is to install for assembly consistency. Visit our webinar page for upcoming and on-demand webinars to learn more about HVAC products.
What do you need to know about HVAC dampers?
Choose from both rectangle and round configurations designed specifically for things like safety applications, low-leakage and heavy duty industrial needs, and backdraft for pressure relief. Ideal for outdoor air applications that require low-leakage rated dampers, our HVAC dampers prevent hot or cold outside air from penetrating your building.
How does a foam air duct damper work?
This damper works in both horizontal or vertical positions and the foam seal provides minimal air leakage. Due to its unique design it opens easily with normal air flow and closes with gravity.